but portfolio managers say it's not always smart to chase growth. >> europe has sold off a lot. a lot of european companies and countries are selling at or near the 2009 low and so, the valuations, when you look across the world in the equity space, the valuations of european companies, particularly the high quality companies is very, very attractive. >> reporter: they may be attractive, but for many investors, investing in europe is just too risky. plenty of people would rather stick with the comfort of the us stock market, which is trading at multi-year highs. erika miller, "n.b.r.," new york. >> susie: stocks spent much of the day in negative territory as those worries about the global economy weighed on wall street, but late buyg in the blue chips turned the dow positive. the dow closed up almost 19 points, the nasdaq fell six, the s&p down almost a point. joining us now, for more analysis, nick colas, chief market strategist at convergex.